| ClassificationDipoleConfig | Configuration for classification of detected diaSources as dipole or not | 
| ClassificationDipolePlugin(config, name, …) | A plugin to classify whether a diaSource is a dipole. | 
| DcrModel(modelImages[, filterInfo, psf, …]) | A model of the true sky after correcting chromatic effects. | 
| DecorrelateALKernelConfig | Configuration parameters for the DecorrelateALKernelTask | 
| DecorrelateALKernelMapReduceConfig | Configuration parameters for the ImageMapReduceTask to direct it to use DecorrelateALKernelMapper as its mapper for A&L decorrelation. | 
| DecorrelateALKernelMapper(*args, **kwargs) | Task to be used as an ImageMapper for performing A&L decorrelation on subimages on a grid across a A&L difference image. | 
| DecorrelateALKernelSpatialConfig | Configuration parameters for the DecorrelateALKernelSpatialTask. | 
| DecorrelateALKernelSpatialTask(*args, **kwargs) | Decorrelate the effect of convolution by Alard-Lupton matching kernel in image difference | 
| DecorrelateALKernelTask(*args, **kwargs) | Decorrelate the effect of convolution by Alard-Lupton matching kernel in image difference | 
| DetectionConfig | Configuration for detecting sources on images for building a PSF-matching kernel | 
| DiaCatalogSourceSelectorConfig |  | 
| DiaCatalogSourceSelectorTask(**kwargs) | A task that selects sources for Kernel candidates. | 
| DiaSourceAnalyst(config) |  | 
| DiaSourceAnalystConfig |  | 
| DipoleAnalysis() | Functor class that provides (S/N, position, orientation) of measured dipoles | 
| DipoleCentroidControl |  | 
| DipoleDeblender() | Functor to deblend a source as a dipole, and return a new source with deblended footprints. | 
| DipoleFitAlgorithm(diffim[, posImage, negImage]) | Fit a dipole model using an image difference. | 
| DipoleFitPlugin(config, name, schema, metadata) | A single frame measurement plugin that fits dipoles to all merged (two-peak) diaSources. | 
| DipoleFitPluginConfig | Configuration for DipoleFitPlugin | 
| DipoleFitTask(schema[, algMetadata]) | A task that fits a dipole to a difference image, with an optional separate detection image. | 
| DipoleFitTaskConfig | Measurement of detected diaSources as dipoles | 
| DipoleFluxControl |  | 
| DipoleMeasurementConfig | Measurement of detected diaSources as dipoles | 
| DipoleMeasurementTask(schema[, algMetadata]) | Measurement of Sources, specifically ones from difference images, for characterization as dipoles | 
| FindSetBitsU |  | 
| GetCalexpAsTemplateConfig |  | 
| GetCalexpAsTemplateTask([config, name, …]) | Subtask to retrieve calexp of the same ccd number as the science image SensorRef for use as an image difference template. | 
| GetCoaddAsTemplateConfig |  | 
| GetCoaddAsTemplateTask([config, name, …]) | Subtask to retrieve coadd for use as an image difference template. | 
| ImageMapReduceConfig | Configuration parameters for the ImageMapReduceTask | 
| ImageMapReduceTask(*args, **kwargs) | Split an Exposure into subExposures (optionally on a grid) and perform the same operation on each. | 
| ImageMapper([config, name, parentTask, log]) | Abstract base class for any task that is to be used as ImageMapReduceConfig.mapper. | 
| ImageMapperConfig | Configuration parameters for ImageMapper | 
| ImagePsfMatchConfig | Configuration for image-to-image Psf matching. | 
| ImagePsfMatchTask(*args, **kwargs) | Psf-match two MaskedImages or Exposures using the sources in the images. | 
| ImageReducer([config, name, parentTask, log]) | Base class for any ‘reduce’ task that is to be used as ImageMapReduceConfig.reducer. | 
| ImageReducerConfig | Configuration parameters for the ImageReducer | 
| ImageStatisticsD |  | 
| ImageStatisticsI |  | 
| KernelCandidateQa(nKernelSpatial) | Quality Assessment class for Kernel Candidates | 
| KernelPcaD |  | 
| KernelPcaVisitorF |  | 
| KernelSolution |  | 
| MaskedKernelSolutionF |  | 
| ModelPsfMatchConfig | Configuration for model-to-model Psf matching | 
| ModelPsfMatchTask(*args, **kwargs) | Matching of two model Psfs, and application of the Psf-matching kernel to an input Exposure | 
| NaiveDipoleCentroid |  | 
| NaiveDipoleFlux |  | 
| NbasisEvaluator(psfMatchConfig, …) | A functor to evaluate the Bayesian Information Criterion for the number of basis sets going into the kernel fitting | 
| PsfDipoleFlux |  | 
| PsfDipoleFluxControl |  | 
| PsfMatchConfig | Base configuration for Psf-matching | 
| PsfMatchConfigAL | The parameters specific to the “Alard-Lupton” (sum-of-Gaussian) Psf-matching basis | 
| PsfMatchConfigDF | The parameters specific to the delta-function (one basis per-pixel) Psf-matching basis | 
| PsfMatchTask(*args, **kwargs) | Base class for Psf Matching; should not be called directly | 
| RegularizedKernelSolutionF |  | 
| SnapPsfMatchConfig |  | 
| SnapPsfMatchConfigAL | Sum-of-Gaussian (Alard-Lupton) Psf-matching config optimized for snap subtraction | 
| SnapPsfMatchConfigDF | Delta-function Psf-matching config optimized for snap subtraction | 
| SnapPsfMatchTask(*args, **kwargs) | Image-based Psf-matching of two subsequent snaps from the same visit | 
| SourceFlagChecker(sources[, badFlags]) | Functor class to check whether a diaSource has flags set that should cause it to be labeled bad. | 
| SpatialKernelSolution |  | 
| StaticKernelSolutionF |  | 
| ZogyConfig | Configuration parameters for the ZogyTask | 
| ZogyImagePsfMatchConfig | Config for the ZogyImagePsfMatchTask | 
| ZogyImagePsfMatchTask(*args, **kwargs) | Task to perform Zogy PSF matching and image subtraction. | 
| ZogyMapReduceConfig | Config to be passed to ImageMapReduceTask | 
| ZogyMapper(*args, **kwargs) | Task to be used as an ImageMapper for performing ZOGY image subtraction on a grid of subimages. | 
| ZogyTask([templateExposure, …]) | Task to perform ZOGY proper image subtraction. |